Wiki source code of 3. Evaluation Methods

Version 43.1 by William OGrady on 2024/04/04 14:08

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Rixt Hellinga 24.1 1 To ground the design rationale in practice, the prototype of the NAO for the PwD will be evaluated in a formative evaluation with the PwD and their caregivers. The evaluation will investigate the process of how interaction with the NAO can alleviate potential symptoms caused by early-stage dementia in PwD.  Three methods of evaluation will be applied to have reliable and accurate results, as Bethel. et al (2020)[1] suggests.
Jean-Paul Smit 3.2 2
William OGrady 42.1 3 The study will focus on the prototype's potential effects, which are based on the desired value of autonomy as a part of self-direction. Before the study, possible confounding variables need to be examined such as the PwD's attitude towards robots and the** relatedness** and **competence**.
Rixt Hellinga 18.1 4
William OGrady 31.1 5 ==== ====
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Jean-Paul Smit 37.1 7 == //**Study design variables**// ==
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Jean-Paul Smit 37.1 9 The study will hypothesize on the following variables with regards to the system:
Jean-Paul Smit 3.2 10
Jean-Paul Smit 3.3 11
Jean-Paul Smit 37.1 12 1. **Relatedness. **Does the design positively affect the PwD's //affective //state?
13 11. **Affect**. How do participants feel about using the robot in this state?
14 11. **Attitude towards Technology**. How do people think about using technology? Are they biased towards the robot before the study?
15 1. **Competence. **Is the design //competent//; is the design capable enough for the PwD to rely on it?
16 11. **Memory self-efficacy **(pre-study) How good are participants at remembering information?
17 11. **Memory recall **(post-study) Can the participant accurately retrieve information through the robot?
Jean-Paul Smit 3.3 18
Jean-Paul Smit 37.1 19 For a sample size as small as 20 participants, it is most adequate to apply a within-subjects design (they require fewer participants) [1]. That means there is an approach where every PwD is experiencing all of the conditions examined. A within-subjects design might be prone to confounds such as pre-existing notions in the environment. That is why the attitude towards robots and the pre-study sense of affect and autonomy should be examined and evaluated as such.
Jean-Paul Smit 3.3 20
Jean-Paul Smit 40.1 21 [[image:3\. Evaluation.b\. Test.WebHome@Socio-Cognitive Engineering - Frame 1.jpg]]
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Jean-Paul Smit 30.1 23
William OGrady 43.1 24 == //**Surveys**// ==
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Jean-Paul Smit 38.1 26 Affect will be measured by the Self-Assessment Manikin [2] that takes less than a minute. It will be used for both pre-experiment and post-experiment evaluation.
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28 For Attitude towards robots, we build upon the works of [reference] and create a set of two 1-minute questions.
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Jean-Paul Smit 39.1 30 A well-suited tool for Memory self-efficacy is the mini-mental state examination [3]. We adopt it to fit to the ecological validity and domain of interest in our study.
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William OGrady 32.1 33 == //**References**// ==
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Jean-Paul Smit 38.1 35 [1] Bethel, C.L., Henkel, Z., Baugus, K. (2020). Conducting Studies in Human-Robot Interaction. In: Jost, C., //et al.// Human-Robot Interaction. Springer Series on Bio- and Neurosystems, vol 12. Springer, Cham. [[https:~~/~~/doi.org/10.1007/978-3-030-42307-0_4>>https://doi.org/10.1007/978-3-030-42307-0_4]]
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37 [2] Bradley, M. M., & Lang, P. J. (1994). Measuring emotion: the self-assessment manikin and the semantic differential. //Journal of behavior therapy and experimental psychiatry//, //25//(1), 49-59.
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39 [3] Kurlowicz, L., & Wallace, M. (1999). The mini-mental state examination (MMSE). //Journal of gerontological nursing//, //25//(5), 8-9.